Making the change from a carburetor to EFI or EFI to carburetor?. Replace original X1 Series regulator internals with the conversion kit of your choice (Part # 13013, 13014, and 13015) and you have a regulator with vastly different characteristics.
Aeromotive X1 Series Internal Conversion Kit 188in seat 35-75psi 13013
Aeromotive X1 Series Internal Conversion Kit Seat: .313"
Aeromotive X1 Series Internal Conversion Kit Seat: .188"
Aeromotive X1 Series EFI Pro Bypass 2-Port Regulator Seat: .313" (Black)
Aeromotive X1 Series Carburetor Bypass 2-Port Regulator Seat: .313" (Black)
Aeromotive Regulator X1 Series – EFI Bypass 13303 AEROMOTIVE'S NEWEST Regulator
